When you demand the ultimate in style, versatility and performance for critical water containment, Topseal DoubleTop is the perfect answer.

When you demand the ultimate in style, versatility and performance for critical water containment, Topseal DoubleTop is the perfect answer. Topseal DoubleTop can deliver guaranteed performance under water for at least 25-years, enabling you to create a versatile and stylish pond, pool, wet room or practically any environment where you need guaranteed protection.